Headphone



FIG. 1 is a perspective view of a headphone embodying my new design;

FIG. 2 is a rear plan view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a top plan view thereof; and

FIG. 5 is a bottom plan view thereof.

A right side elevational view is a mirror image of the left side elevational view of FIG. 3. 

The ornamental design for a headphone, as shown and described. 